Concern about immigrants and their loyalty in the post World War I era led to programs to "Americanize" them -- an effort to help them learn English and otherwise adjust to life in the United States. Clara Soule ran one such program for the Portland Public Schools, hoping it would help the immigrants be accepted.

Several Mainers have run for president or vice president, a number of presidents, past presidents, and future presidents have had ties to the state or visited here, and, during campaign season, many presidential candidates and their family members have brought their campaigns to Maine.